US5000673A - Process and apparatus for preparing a flat-topped wave-board panel - Google Patents

Process and apparatus for preparing a flat-topped wave-board panel Download PDF

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Publication number
US5000673A
US5000673A US07/342,310 US34231089A US5000673A US 5000673 A US5000673 A US 5000673A US 34231089 A US34231089 A US 34231089A US 5000673 A US5000673 A US 5000673A
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United States
Prior art keywords
link elements
elements
link
base plate
flat
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Expired - Fee Related
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US07/342,310
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English (en)
Inventor
Lars Bach
Eduard Stark
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Canada Minister of Forestry
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Canada Minister of Forestry
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Assigned to HER MAJESTY THE QUEEN IN RIGHT OF CANADA AS REPRESENTED BY THE MINISTER OF FORESTRY, reassignment HER MAJESTY THE QUEEN IN RIGHT OF CANADA AS REPRESENTED BY THE MINISTER OF FORESTRY, ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BACH, LARS, STARK, EDUARD
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N5/00—Manufacture of non-flat articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/20—Moulding or pressing characterised by using platen-presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/22—Corrugating
    • B29C53/24—Corrugating of plates or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/062—Press plates

Definitions

  • the present invention relates to an apparatus and process for the manufacture of a wave-board panel.
  • a wafer board panel comprises layers of wood flakes or wafers formed into a composite structure using a resinous binder.
  • the preparation of wafer board panels is complex, but broadly consists of two principal stages. The first stage comprises the preparation of the wafers and the admixing thereof to form a loose layer or mat; the second stage involves subsequent compression and heating of the mat to cure the resin and form the consolidated panel.
  • wafer board was manufactured in the form of planar or flat sheets.
  • the present applicant has developed an apparatus and process respectively for the manufacture of panels having a wave-like or corrugated configuration.
  • Such wave-board panels have improved structural strength properties, relative to planar panels.
  • This prior patented apparatus involved a pair of opposed, spaced-apart, upper and lower platens. Each platen was formed of adjacent lengths of chain-like links. When the lengths were pushed inwardly from the side, they would shift from a planar to an undulating corrugated form.
  • the main advantage inherent in the patented process was that the panel product so formed was characterized by having a substantially uniform density. This was achieved because the wafers were fixed by the pre-compression step and because the mat was not significantly stretched or elongated during the conversion from the planar to the corrugated configuration.
  • the product formed using the particular mechanical assembly described hereabove has a generally sinusoidal configuration.
  • the peaks and troughs of the panel have a generally rounded profile.
  • corrugated wave-board may involve the attachment of a corrugated wave-board web to either a single or two planar stressed-skin panels.
  • the separate pieces are secured together by means of adhesives or by fastening elements.
  • a wave-board characterized by a flat-topped (or flat-peaked) and a flat-bottomed (or flat-troughed) profile (hereinafter referred to as a "flat-topped wave-board").
  • This change would increase the available attachment area between components and thus provide improved stability.
  • a particularly configured wave-board and a press platen assembly for manufacturing the wave-board has been developed.
  • such locking means would comprise stops associated with each side of the connecting flat-topped link elements which stops cooperate with the angled main links so as to function in a hinge-like manner.
  • the flat-topped panel prepared by the apparatus of the present invention is advantageously characterized by exhibiting improved strength and bending properties which inherently accompany this particular configuration.
  • the invention is a platen assembly, for use in forming flat-topped wave-board panels, comprising: first means for forming a planar support surface; parallel, spaced apart, elongate end members forming inner working faces that are generally perpendicular to the support surface, at least one of said end members being movable toward the other along the support surface while remaining parallel thereto; a plurality of elongate link elements positioned on the support surface in spaced relationship, between the end members, said elements being slidable along the surface in parallel relationship, said link elements forming a generally planar upper surface; first and second opposed pivoting link elements, said link elements each being pivotally connected at one end to an adjacent link element whereby the pair of first and second pivoting elements extend between a pair of link elements; connecting link elements forming a generally planar upper surface, said connecting link elements each being pivotally connected between a pair of first and second pivoting link elements, whereby the connecting link elements maintain the pivoting link elements connected thereto in spaced apart relationship; means associated with each pair of
  • the invention provides a wave-board formed of binder-coated wafers which have been subjected to binder curing and compression which comprises: a board having a wave-like configuration and generally flat at its top and bottom, said board having a substantially uniform density throughout.
  • FIG. 1 is a perspective view showing a lower platen assembly in accordance with the invention with the links in the corrugated position;
  • FIG. 2 is a side view showing the upper and lower platen assemblies in the generally planar configuration
  • FIG. 3 is a side view illustrating the upper and lower platen assemblies in the fully corrugated mode with the wafer mat therebetween;
  • FIG. 4 is a side view showing upper and lower platens with the mat therebetween prior to compression
  • FIG. 5 is a side view showing upper and lower platens at the commencement of the compression step
  • FIG. 6 is a side view showing the press assembly in the fully corrugated position
  • FIGS. 7 and 8, and 9 are side views, plan views and end views respectively of an end link
  • FIGS. 10, 11, and 12 are side views, end views and plan views respectively of a main link.
  • FIGS. 13 and 14 are side views and plan views respectively of a stationary link
  • FIGS. 15 and 16 are side views and plan views respectively of a sliding link
  • FIGS. 17 and 18 are side views and plan views respectively of a connecting link
  • FIG. 19 is an exploded view of the link elements making up the assembly
  • FIG. 20 is a perspective view of the flat-topped wafer-board panel product
  • FIG. 21 is a perspective view of the upper and lower platens illustrating their respective alignment members.
  • a platen assembly 1 which includes a base plate 2.
  • the key-ways are cut in the upper face of the lower and upper base plates 2a and 2b respectively.
  • the key-ways are parallel and extend longitudinally the length of the base plate 2, at spaced points across its width.
  • An elongate stop member 4a is affixed to the base plate 2a along one edge thereof and extends transversely thereacross.
  • a second elongate stop member 4b is similarly affixed to the base plate 2b.
  • An elongate biasing member 5 is positioned on each of the base plates 2 along its other edge in opposed relation to the stop members 4.
  • the biasing member 5 has downwardly extending keys (not shown) for engaging the key-ways 3.
  • the transversely extending biasing member 5 is slidable along the base plate 2 toward the stop member 4.
  • the walls of the key-ways 3 are operative to maintain the biasing member 5 parallel to the stop member 4.
  • the stop member 4 and biasing member 5 form end members for the platen to be described hereinafter.
  • a pair of double-acting hydraulic cylinders 6 are secured to the base plate 2 at one end thereof in spaced apart relationship.
  • the cylinders 6 extend longitudinally parallel to the main axis of the base plate 2.
  • the pistons 6a of the cylinders 6 are secured to the biasing member 5.
  • Extension or contraction of the cylinders 6 serves to advance or retract the biasing member 5, along the key-ways 3, toward or away from the stop member 4 and parallel thereto.
  • a row 7 Secured to the biasing member 5 is a row 7 comprised of side-by-side end links 7a.
  • each end link 7a comprises an elongate generally rectangular block 7b having on one of its upper corners a pair of generally circular cut away sections 7c leaving a central tongue 7d therebetween.
  • a generally circular bore 7f extends through the central tongue 7d.
  • a second circular bore 7g is further defined in the block 7b for reasons to be described later.
  • a key 7h extends downwardly for engaging the key-ways 3.
  • Spaced apart link rows 8 extend transversely across the base plate 2 parallel to the end link row 7, stop members 4 and biasing members 5.
  • Each row 8, is comprised of discreet sliding link members 8a positioned in side-by-side relationship. It will be noted that the upper working face 8e of each sliding link 8a is flat so as to impart a planar or flat top to the troughs 19 of the panel.17.
  • each sliding link 8a comprises a generally rectangular block 8b having each of its four upper corners cut away in a generally circular fashion to form grooves 8c.
  • Each central segment 8d forms a transverse bore 8e and 8f respectively.
  • a further bore 8g extends transversely through the upper portion of the block 8b.
  • each row 8 abuts one another in closely positioned consolidated formation.
  • Each row 8 comprising a link element 8a is slidable as a unit along the length of the base plate 2.
  • a first row of main links 9, is pivotally connected on one side thereof to the row 7 of end links and on the other to a first row of connecting links 10.
  • An identical row of main links 9 is similarly pivotally connected on one side to the first row of connecting links 10 and on its other to the row of sliding links 8.
  • main links 9 are alternatively pivotally connected to sliding links 8 and connecting links 10 as illustrated.
  • rows of links 9 comprise the first and second opposed pivoting link elements.
  • Each link row 9 is formed of an array of side-by-side individual main links 9a which dovetail at each end with the sliding links 8 and connecting links 10.
  • each main link 9a comprises an elongate generally rectangular block 9b.
  • a pair of generally circular grooves 9c are cut away on each of its outer ends leaving generally circular tongues 9d herebetween.
  • Generally circular bores 9f and 9h respectively are formed in each of the tongue portions 9d.
  • a second pair of bores 9g are formed in the block 9b for reasons to be described hereinafter.
  • a row 10 of connecting links 10a is positioned between each row 9 of opposed main links 9a and pivotally connected thereto by means of rods 12.
  • each connecting link 10a comprises a generally L-shaped block 10b having planar upper and lower surfaces 10e.
  • Each of the link 10a's upper corners are cut away in a generally circular fashion to form arcuate grooves 10c.
  • Circular bores 10h are provided in segments 10d.
  • a central bore 10g is further formed in the central portion 10b for reasons to be described hereinafter.
  • the faces 8k and 9k of the individual links 8a and 9b are brought into abutting engagement one with another.
  • the rods 12 extend through their aligned bores 8f and 9f respectively.
  • the faces 9k and 10k of the links 9a and 10a respectively are contigious with the rod 12 extending through their aligned bores 9h and 10h respectively.
  • the arrangement of alternating tongue's grooves 9c and tongues 9d on the main links 9 and alternating grooves 10c and tongues 10d formed on the connecting links 10 function to limit the angular rotation of the pivotally interconnected links 9 and 10, operating in a hinge-like manner.
  • the opposed pivoting main links are fixed into a generally inverted v-shape.
  • the sliding link rows 8 will pivot only to the extent that the top connecting link rows 10 lie in a generally horizontal plane.
  • stop means are provided for releasably limiting the pivoting elements to a generally inverted v-shaped configuration with said connecting link elements lying in a horizontal plane therebetween.
  • each end link 11a Adjacent the stop member 4 is a row 11 of side by side end links 11a.
  • Each end link 11a which is of a generally rectangular shape forms a block 11b.
  • the side is cut away in a generally circular fashion to form grooves 11c.
  • a central segment 11d which forms a circular bore 11f.
  • spacers 15 Transversely extending across the lower plate 2a are provided spacers 15. Also provided on the base plate 2a and associated with said spacers 15 are lifters 16 which function to guide the directional movement of the main links 9 and connecting links 10.
  • the sliding link rows are fixed to the base plate by the key and key-way interconnections--they can travel along the length of the base plate toward each other in parallel formation but their elevation remains constant;
  • the pivoting main link rows move upwardly, only to a predetermined position.
  • the top connecting link row which at this point is lying at an inclined angle, falls back into a planar position as the biasing force is continued and the opposed pivoting row is rotated only to a predetermined extent whereupon the top connecting link row is locked in the horizontal plane by the provision of the aforementioned stop means.
  • first and second opposed pivoting link elements, sliding link elements and connecting link elements having locking means associated therewith cooperate to provide a substantially non-porous platen whose surface configuration is mechanically convertible between a substantially planar form and a corrugated form wherein the peaks and troughs of the corrugations are characterized by being of a generally flat or planar profile.
  • Heating means are supplied to heat the platen 1. Such means are provided by electrical heating rods 13 which extend through the bores 8g, 9g, and 10g respectively as described hereabove.
  • FIG. 21 there is provided means for aligning the lower and upper platens 2a and 2b respectively one with another. More specifically, a pin 21 is mounted on block 22 of the lower platen 2a. An upper block 23 having a female bore 24 in registration with pin 21 is mounted thereabove an upper platen 2b. A plurality of U-shaped guides 25 are positioned in spaced apart relationship on the lower platen 2b. Corresponding sliders 27 adapted to conform to the U-shaped guides are mounted at spaced intervals on the upper platen 2b.
  • FIG. 3 shows two horizontal platen assemblies in spaced apart opposed relationship.
  • Conventional press members (not shown) may be connected to the platen assemblies 1, for biasing the latter together in a vertical direction and applying pressure thereto.
  • the process for producing the flat-topped wave-board was as follows.
  • the furnish could be prepared using various wood species. Aspen logs, approximately 8" length and 6"-14" in diameter were used. The logs were cleaned, debarked, waferized and screened in accordance with conventional methods. The strand or wafer length averaged 76 mm (3") and the thickness was about 0.76 mm (0.03"), however other strand or wafer geometries may be used. The length of the strands may range up to 6".
  • the moisture content of the furnish was reduced from the green state to about 5% using commercial dryers.
  • the wafers were screened following drying.
  • the furnish was blended with 3% by weight of powdered phenol formaldehyde resin and 1% by weight wax in a drum blender. Wax was utilized to improve the moisture resistance of the panel. Resin was utilized as a binder for the wafers.
  • the wafers and wax/resin in admixture were arranged loosely by hand between two flexible stainless steel screens (cauls) to form the mat.
  • the quantity of wafers and resin used was sufficient to produce a board having the required density.
  • the cauls had previously been dusted with talcum powder to prevent bonding of the wafers thereto. Using the cauls the mat was transferred to the press.
  • the mat was subjected simultaneously to high temperature, which set the binder and to high pressure which compressed the mat to its specified thickness.
  • the platen temperature was maintained at 205° C.
  • the press members were actuated to force the flat platen assemblies 1 toward one another, pre-compressing the mat thereby substantially fixing the wafers together and restricting their relative movement.
  • the vertical pre-compression force applied was of the order of 10 6 Newtons.
  • the cylinders 6 were actuated to cause the biasing members 5 of the two platen assemblies 1 to move toward the stop members 4.
  • the magnitude of the applied laterally - directed force was of the order of 10 6 Newtons.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
US07/342,310 1989-04-04 1989-04-24 Process and apparatus for preparing a flat-topped wave-board panel Expired - Fee Related US5000673A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA595657 1989-04-04
CA000595657A CA1283590C (fr) 1989-04-04 1989-04-04 Methode et dispositif pour preparer des panneaux ondules a face plane

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2340060A (en) * 1998-07-29 2000-02-16 Mdf Inc Shaping flat blanks for forming a door
US6073419A (en) * 1997-04-10 2000-06-13 Premdor, Inc. Method of manufacturing a molded door skin from a wood composite, door skin produced therefrom, and door manufactured therewith
US6511567B1 (en) 1999-03-31 2003-01-28 International Paper Company Composite building components and method of making same
US6689301B1 (en) 1997-04-10 2004-02-10 Mdf, Inc. Method of manufacturing a molded door skin from a wood composite, door skin produced therefrom, and door manufactured therewith
US6773791B1 (en) 1999-03-31 2004-08-10 Masonite Corporation Composite building components, and method of making same
RU2272710C1 (ru) * 2004-07-14 2006-03-27 Ильдус Мухаметгалеевич Закиров Способ изготовления фильтровального элемента и устройство для его осуществления
US20070098835A1 (en) * 2003-12-11 2007-05-03 Airbus Device for sheet material corrugation
US20070184144A1 (en) * 2003-12-17 2007-08-09 Airbus Foldable mandrel for production of a single curvature folded core for a sandwich panel
US7438618B1 (en) 2005-04-29 2008-10-21 D&S Toys Company Limited Flotation device
US20090255205A1 (en) * 2008-03-28 2009-10-15 Robert Noble Engineered Molded Fiberboard Panels and Methods of Making and Using the Same
US20100104813A1 (en) * 2008-10-21 2010-04-29 Andre Verville Embossed monolayer particleboards and methods of preparation thereof
US20150203322A1 (en) * 2012-08-13 2015-07-23 Tessellated Group, Llc Apparatus for Folding a Sheet of Material Into a Support Structure

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US771677A (en) * 1904-06-22 1904-10-04 Arthur C Squires Machine for making dress-shields.
US2481049A (en) * 1947-04-16 1949-09-06 Alfred J Stamm Apparatus for corrugating sheet material
GB650134A (en) * 1947-07-15 1951-02-14 Ji Te Ab Improvements in or relating to the production of plates or the like of cellulosic material
DE1122430B (de) * 1959-09-09 1962-01-18 Smidth & Co As F L Vorrichtung zum Wellen flacher, plastischer Platten
US3575768A (en) * 1968-04-01 1971-04-20 Budd Co Machine for making corrugated fibre
DE2023775A1 (fr) * 1970-05-15 1972-01-13
US4025599A (en) * 1971-11-29 1977-05-24 Ici Australia Limited Cuspated sheet forming
SU647136A1 (ru) * 1977-03-09 1979-02-15 Днепропетровский Ордена Трудового Красного Знамени Завод Прессов Рычажный механизм одновременного смыкани плит многоэтажного пресса
JPS56144921A (en) * 1980-04-15 1981-11-11 Kyowa Gas Chem Ind Co Ltd Manufacture of corrugated plate
US4616991A (en) * 1985-08-15 1986-10-14 Her Majesty The Queen In Right Of The Province Of Alberta As Represented By The Minister Of Energy And Natural Resources Apparatus for the manufacture of a corrugated wafer board panel
SU1268424A1 (ru) * 1985-02-20 1986-11-07 Kurochkin Viktor A Устройство дл формовани минераловатных скорлуп
US4624726A (en) * 1985-06-06 1986-11-25 Ltv Aerospace And Defense Company Apparatus for forming elongate structures of composite materials
US4668321A (en) * 1983-12-30 1987-05-26 Engetra, S.A. Method of manufacturing a packing device for an installation putting a liquid and a gas in contact
US4675138A (en) * 1985-08-15 1987-06-23 Her Majesty The Queen In Right Of The Province Of Alberta As Represented By The Minister Of Energy And Natural Resources Process for the manufacture of a corrugated wafer board panel

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US771677A (en) * 1904-06-22 1904-10-04 Arthur C Squires Machine for making dress-shields.
US2481049A (en) * 1947-04-16 1949-09-06 Alfred J Stamm Apparatus for corrugating sheet material
GB650134A (en) * 1947-07-15 1951-02-14 Ji Te Ab Improvements in or relating to the production of plates or the like of cellulosic material
DE1122430B (de) * 1959-09-09 1962-01-18 Smidth & Co As F L Vorrichtung zum Wellen flacher, plastischer Platten
US3575768A (en) * 1968-04-01 1971-04-20 Budd Co Machine for making corrugated fibre
DE2023775A1 (fr) * 1970-05-15 1972-01-13
US4025599A (en) * 1971-11-29 1977-05-24 Ici Australia Limited Cuspated sheet forming
SU647136A1 (ru) * 1977-03-09 1979-02-15 Днепропетровский Ордена Трудового Красного Знамени Завод Прессов Рычажный механизм одновременного смыкани плит многоэтажного пресса
JPS56144921A (en) * 1980-04-15 1981-11-11 Kyowa Gas Chem Ind Co Ltd Manufacture of corrugated plate
US4668321A (en) * 1983-12-30 1987-05-26 Engetra, S.A. Method of manufacturing a packing device for an installation putting a liquid and a gas in contact
SU1268424A1 (ru) * 1985-02-20 1986-11-07 Kurochkin Viktor A Устройство дл формовани минераловатных скорлуп
US4624726A (en) * 1985-06-06 1986-11-25 Ltv Aerospace And Defense Company Apparatus for forming elongate structures of composite materials
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US4675138A (en) * 1985-08-15 1987-06-23 Her Majesty The Queen In Right Of The Province Of Alberta As Represented By The Minister Of Energy And Natural Resources Process for the manufacture of a corrugated wafer board panel

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6689301B1 (en) 1997-04-10 2004-02-10 Mdf, Inc. Method of manufacturing a molded door skin from a wood composite, door skin produced therefrom, and door manufactured therewith
US6073419A (en) * 1997-04-10 2000-06-13 Premdor, Inc. Method of manufacturing a molded door skin from a wood composite, door skin produced therefrom, and door manufactured therewith
US20020046805A1 (en) * 1998-07-29 2002-04-25 Hartley Moyes Method of manufacturing a molded door skin from a flat wood composite, door skin produced therefrom, and door manufactured therewith
US9464475B2 (en) 1998-07-29 2016-10-11 Masonite Corporation Method of manufacturing a molded door skin from a flat wood composite, door skin produced therefrom, and door manufactured therewith
GB2340060B (en) * 1998-07-29 2003-08-13 Mdf Inc Method of manufacturing a molded door skin from a flat wood composite, door skin produced therefrom and door manufactured therewith
US6312540B1 (en) 1998-07-29 2001-11-06 Mdf, Inc. Method of manufacturing a molded door skin from a flat wood composite, door skin produced therefrom, and door manufactured therewith
US7856779B2 (en) 1998-07-29 2010-12-28 Masonite Corporation Method of manufacturing a molded door skin from a flat wood composite, door skin produced therefrom, and door manufactured therewith
US8650822B2 (en) 1998-07-29 2014-02-18 Masonite Corporation Method of manufacturing a molded door skin from a flat wood composite, door skin produced therefrom, and door manufactured therewith
US8833022B2 (en) 1998-07-29 2014-09-16 Masonite Corporation Method of manufacturing a molded door skin from a flat wood composite, door skin produced therefrom, and door manufactured therewith
US9109393B2 (en) 1998-07-29 2015-08-18 Masonite Corporation Method of manufacturing a molded door skin from a flat wood composite, door skin produced therefrom, and door manufactured therewith
GB2340060A (en) * 1998-07-29 2000-02-16 Mdf Inc Shaping flat blanks for forming a door
US6511567B1 (en) 1999-03-31 2003-01-28 International Paper Company Composite building components and method of making same
US6773791B1 (en) 1999-03-31 2004-08-10 Masonite Corporation Composite building components, and method of making same
US20050011605A1 (en) * 1999-03-31 2005-01-20 Ruggie Mark A. Composite building components, and method of making same
US7255765B2 (en) 1999-03-31 2007-08-14 Masonite Corporation Method of making a composite building material
US20070098835A1 (en) * 2003-12-11 2007-05-03 Airbus Device for sheet material corrugation
US7429171B2 (en) * 2003-12-11 2008-09-30 Airbus Device for sheet material corrugation
US7458802B2 (en) * 2003-12-17 2008-12-02 Airbus Foldable mandrel for production of a single curvature folded core for a sandwich panel
US20070184144A1 (en) * 2003-12-17 2007-08-09 Airbus Foldable mandrel for production of a single curvature folded core for a sandwich panel
RU2272710C1 (ru) * 2004-07-14 2006-03-27 Ильдус Мухаметгалеевич Закиров Способ изготовления фильтровального элемента и устройство для его осуществления
US7438618B1 (en) 2005-04-29 2008-10-21 D&S Toys Company Limited Flotation device
US8475894B2 (en) 2008-03-28 2013-07-02 Nobel Environmental Technologies Corp. Engineered molded fiberboard panels, methods of making the panels, and products fabricated from the panels
US8297027B2 (en) 2008-03-28 2012-10-30 The United States Of America As Represented By The Secretary Of Agriculture Engineered molded fiberboard panels and methods of making and using the same
US8936699B2 (en) 2008-03-28 2015-01-20 Noble Environmental Technologies Corporation Engineered molded fiberboard panels and methods of making and using the same
US20100078985A1 (en) * 2008-03-28 2010-04-01 Mahoney James F Engineered Molded Fiberboard Panels. Methods of Making the Panels, and Products Fabricated From the Panels
US20090255205A1 (en) * 2008-03-28 2009-10-15 Robert Noble Engineered Molded Fiberboard Panels and Methods of Making and Using the Same
US20100104813A1 (en) * 2008-10-21 2010-04-29 Andre Verville Embossed monolayer particleboards and methods of preparation thereof
US9162369B2 (en) 2008-10-21 2015-10-20 Andre Verville Embossed monolayer particleboards and methods of preparation thereof
US20150203322A1 (en) * 2012-08-13 2015-07-23 Tessellated Group, Llc Apparatus for Folding a Sheet of Material Into a Support Structure
US10322906B2 (en) * 2012-08-13 2019-06-18 Tessellated Group, Llc Apparatus for folding a sheet of material into a support structure

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